SOME ASPECTS OF HYDROGEN INTERACTION WITH METALLIC MATERIALS

Some aspects of interaction between hydrogen and metallic materials ha ve been considered. Hydrogen may be not only a detrimental impurity th at embrittles the material, but also a valuable alloying addition. In alloys that exothermally absorb hydrogen, e.g., Ti-base alloys, hydrog en can be used, depending on particular requirements, either as a temp orary alloying element enhancing the workability of structural materia ls oh as an active element for commercial hydrogen-bearing materials. We have reviewed general aspects and physicochemical fundamentals of t he theory of hydrogen treatment based on reversible hydrogen alloying, and the new hydrogen-bearing materials technology based on additional hydrogen alloying of solid metal matrix.